...-FD20 FetalDoppler is a hand-held obstetrical device for obtaining the fetal heart movement signals according to Doppler Principle. By recording the fetal heart rate changes, the doctor can observe the abnormal situations, such as fetal...

...Inch TFT Display Medical Grade Pocket FetalHeartbeatDoppler 300HZ Fetaldoppler is handheld diagnostic instrument. It is used to test fetal heart rate in obstetrics department and clinics. It is made up of ultrasound signals...

Features: Portable Ideal gift for all expectant mothers Safe and easy to use device that has been specially designed for home Allows pregnant women to listen to their unborn baby's heart beat, movements and hiccups from as early as 10 to 12 weeks Suitable...

...) 3 the probe taking the principal of fetal ultrasound to collect the fetal heart beat signals of fetus 4 function: a. Acquire the fetalheartbeat signals from fetus, broadcast the fetalheartbeat sound through headphones or out with loudspeaker...